84 THE BOTANICAL MAGAZINE. [Vol. xxxi. No. sgs. 



Hypnea cornuta J. Ag. 



Spec. II, p. 449.— Id. : Epicris, p. 563.— De Toni : Syll. alg. 

 IV, p. 478, 



= Gigartina cornuta Lamx. mscr. (sec. J. Agardh). 

 = Chondroclonium cornutum Kutz. : Spec, p. 741. 

 = Hypnea Valentiie Mont, (non Turn.) : Canar. Crypt., p. 161. — 

 J. Ag. : Spec. II, p. 450. — Id. : Epicris, p. 564. 



My specimens are tetrasproric and agree quite well with 

 the type of H. cornuta J. Ag. at Lund. In general appearance 

 the plant resembles to a form of H. musciformis Lamx. But 

 the short, conical, simple or stellate, rigid, spinous processes 

 beset on branches and branchlets soon distinguish it from the 

 latter species. 



The definitions of H. cornuta J. Ag. and H. Valentine Mont. 

 in J. Agardh's Spec. II, p. 449 and p. 450 respectively, as well 

 as in his Epicris, p. 563 and p. 564, do not point any practical 

 difference between both to separate them specifically. The 

 specimens in the Agardhian Herbarium under the names also 

 appear to me to belong to one and the same species. Consult- 

 ing the description and figures of Fucus Valentin given by 

 Turner, the specimens under H. Valentias as determined b3 T 

 J. Agardh may hardly be applied to Turner's plant. In Spec. 

 II, p. 450, J. Agardh notes that he has not seen Turner's 

 specimen but he described the species by the material which he 

 has received from Montagne under H. Valentias. I have, 

 therefore, to choose the name H. cornuta J. Ag. in determining 

 my specimens, reducing H. Valentias Mont, as a synonyme of 

 it. What, then, Fucus Valentias Turn, can be, is a question to 

 be solved in future. 



In the Herbarium of the Academy of Science of St. Peters- 

 burg there is a specimen collected by T. Makino in Ugo Prov., 

 Japan, and determined by Kjellman as H. Valentias Mont. It 

 appeared to me to be H. seticulosa J. Ag. 



Locality. Goto, Hizen Prov. (K. Urabe, No. 12) ; Nagato 

 Prov. (J. Nikai, No. 2602) ; Boshu (F. Sugiyama) ; Ohara, 

 Kadzusa Prov. (!). 



